Search a number
-
+
56007940 = 2252800397
BaseRepresentation
bin1101010110100…
…1110100000100
310220101111110011
43111221310010
5103314223230
65320240004
71250026312
oct325516404
9126344404
1056007940
112968465a
1216910004
13b7acbc1
14761d0b2
154db4e2a
hex3569d04

56007940 has 12 divisors (see below), whose sum is σ = 117616716. Its totient is φ = 22403168.

The previous prime is 56007923. The next prime is 56007989. The reversal of 56007940 is 4970065.

It can be written as a sum of positive squares in 2 ways, for example, as 6895876 + 49112064 = 2626^2 + 7008^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1400179 + ... + 1400218.

It is an arithmetic number, because the mean of its divisors is an integer number (9801393).

Almost surely, 256007940 is an apocalyptic number.

It is an amenable number.

56007940 is an abundant number, since it is smaller than the sum of its proper divisors (61608776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56007940 is a wasteful number, since it uses less digits than its factorization.

56007940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2800406 (or 2800404 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 56007940 is about 7483.8452683096. The cubic root of 56007940 is about 382.6043174542.

The spelling of 56007940 in words is "fifty-six million, seven thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 2800397 5600794 11201588 14001985 28003970 56007940